Building vibration control using water tanks
Keywords:
Active Control System, Passive Control System, lumped mass modelAbstract
This experimental study aimed to control the vibration of the building by using the mathematical model. The existing building used in this study was a 6- story reinforced concrete building that was designed to withstand the increase in weight not exceeding 40% of the mass of the 6th floor and using the El Centro earthquake acceleration wave with the intensity of 2g (the acceleration of the earth) as the force. The experiments were divided into 3 cases, i.e. water tank with 10%, 20% and 30% in weight compared to the lump mass of the sixth floor of the building. It was found that Case Study 1 could reduce the vibration by 15.22 percent, Case Study 2 could reduce the vibration by 28.21 percent and Case Study 3 could reduce the vibration by 40.95 percent, respectively. The results of the simulation showed that Case Study 1, which could reduce the vibration by 15.22 percent, should be sufficient to reduce the vibration of the building.
References
Bhattacharyya, S., & Ghosh, A. D. (2013). A frequency domain study on the seismic response mitigation of elevated water tanks by multiple tuned liquid dampers. Key Engineering Materials, 270–277. https://doi.org/10.4028/www.scientific. net/KEM.569-570.270
Konar, T. (2024). Seismic vibration control of a building by overhead water tank designed as slender tuned sloshing damper. Practice Periodical on Structural Design and Construction, 29(2), 04024004. https://doi.org/10.1061/PPSCFX. SCENG-1393.
Konar, T., & Ghosh, A. D. (2022). A study on the economic perspective of utilizing liquid tanks as dynamic vibration absorbers in building structures. In S. A. Babu (Ed.), 5th World Congress on Disaster Management: Volume I (pp. 115–122). Routledge. https://doi.org/10.1201/9781003341956-15.
Petchsasithon, A., & Saingam, P. (2015). A study on behavior of tuned mass dampers using water tank to reduce vibrations of buildings from earthquake. International Journal of Civil and Structural Engineering, 2(2), 38–42.
Roy, A., Ghosh, A. D., & Chatterjee, S. (2017). Influence of tuning of passive TLD on the seismic vibration control of elevated water tanks under various tank‐full conditions. Structural Control & Health Monitoring, 24(6), e1924. https://doi.org/10.1002/stc.1924
Son, L., Bur, M., & Satria, E. (2018). Vibration response suppression of space structure using two U-shaped water container. International Journal on Advanced Science, Engineering and Information Technology, 8(6), 2472–2478. https://doi.org/10.18517/ijaseit.8.6.7195.
Vongchavalitkul, S. (2003). Active control of structures using pole assignment. J. Material & Structural Reliability.
Vongchavalitkul, S. (2004, August 25-27). Pole assignment for structural active control. ICCAS2004, The Shangri-La Hotel, Bangkok, Thailand.
Yang, J. N., Li, Z., & Vongchavalitkul, S. (1994). A generalization of optimal control theory: Linear and non – linear control. J. Engrg. Mech., ASCE, 120(2).